Source-backedFixed AnnualIn-depth guide
National Horse Protection Day
ASPCA and a New York State legislative resolution recognize March 1 as National Horse Protection Day; the resolution traces its establishment to Colleen Paige in 2005.
Observance library
Browse all researched observances
2,411 researched observances. Search for a specific name or known alternate name.
Source-backedRule Based AnnualIn-depth guide
National Hospitalist Day
SHM states that National Hospitalist Day occurs on the first Thursday in March annually and documents the inaugural 7 March 2019 observance.
Source-backedFixed AnnualIn-depth guide
National Hospitality Workers Appreciation Day
Turning Point Australia explicitly marks National Hospitality Workers Appreciation Day on February 23, while current calendar references use February 23 annually.
Source-backedFixed AnnualIn-depth guide
National Hot Chocolate Day
Dunkin first-party material identifies January 31 as National Hot Chocolate Day in multiple archived pieces.
Source-backedRule Based AnnualIn-depth guide
National Hot Dog Day
The National Hot Dog and Sausage Council’s current planning guide places National Hot Dog Day on the third Wednesday in July. Current steward/date rule are verified, while original creator…
Source-backedFixed AnnualIn-depth guide
National Hot Tea Day
The Tea Council of the USA announced the first National Hot Tea Day for January 12, 2016 and continued using January 12 in later annual campaigns.
Source-backedFixed AnnualIn-depth guide
National HSA Awareness Day
WEX first-party releases identify October 15, 2019 as the inaugural National Health Savings Account Awareness Day and WEX continued marking HSA Day on October 15 through 2025. IRS materials…
Source-backedRule Based AnnualIn-depth guide
National Hug Your Hound Day
National Day Calendar identifies National Hug Your Hound Day as the second Sunday in September and attributes its creation to Ami Moore. Independent calendar corroboration produces dates co…
Source-backedFixed AnnualIn-depth guide
National Hugging Day™
The official National Hugging Day site identifies Kevin Zaborney as founder in 1986, states that the trademarked observance recurs every January 21, and continues the observance through Nat…
Source-backedFixed AnnualIn-depth guide
National Human Trafficking Awareness Day / #WearBlueDay
The U.S. Senate agreed to S. Con. Res. 40 on June 22, 2007 supporting the goals and ideals of observing a National Day of Human Trafficking Awareness on January 11 each year. The reviewed r…
Source-backedRule Based AnnualIn-depth guide
National Hunting and Fishing Day
U.S. Fish & Wildlife Service states Congress established the observance in 1972 and it is celebrated on the fourth Saturday in September
Source-backedFixed AnnualIn-depth guide
National HVAC Tech Day
ARS/Rescue Rooter says it established National HVAC Tech Day in 2016 and celebrates it on June 22.
Source-backedFixed AnnualIn-depth guide
National I Love My Dentist Day
PPAI explicitly identifies National I Love My Dentist Day on June 2; current observance sources corroborate the date while the original founder remains unresolved.
Source-backedRule Based AnnualIn-depth guide
National Ice Cream Day
The U.S. Census Bureau currently describes National Ice Cream Day as the third Sunday in July and traces it to President Reagan’s 1984 proclamation. The Reagan Library text shows that the o…
Source-backedFixed AnnualIn-depth guide
National Idaho Day
National Day Calendar lists its private National Idaho Day on May 17 within the 2017 National State Days series. The U.S. Senate separately records July 3, 1890 statehood, while Idaho educa…
Source-backedFixed AnnualIn-depth guide
National Illinois Day
National Day Calendar lists its private National Illinois Day on December 7 within the National State Days series. The U.S. Senate separately records December 3, 1818 statehood, while Illin…
Source-backedFixed AnnualIn-depth guide
National Independence Day
Cambodia’s official 2026 holiday calendar lists November 9 as National Independence Day, while Royal Government historical material identifies 9 November 1953 as the date Cambodia obtained…
Source-backedFixed AnnualIn-depth guide
National Independence Day
Mauritanian government sources state that independence was proclaimed on November 28, 1960 and that National Independence Day recurs on November 28. Law No. 92.018 of December 7, 1992 fixes…
Source-backedFixed AnnualIn-depth guide
National Independence Day
Sri Lanka National Archives states that Ceylon was declared an independent state on February 4, 1948 after the Ceylon Independence Act 1947 process. The Central Bank of Sri Lanka lists Febr…
Source-backedFixed AnnualIn-depth guide
National Independence Day (Fête nationale de l’Indépendance)
Madagascar government sources mark the national independence celebration on 26 June; the official 2023 legal holiday decree also lists 26 June as Fête nationale de l’Indépendance.
Source-backedFixed AnnualIn-depth guide
National Independence Day of Romania (Ziua Independenței Naționale a României)
A 2026 Romanian prefecture notice states that, following Law 189/2021, the Romanian state has commemorated National Independence Day every year on 10 May since 2022.
Source-backedFixed AnnualIn-depth guide
National Independent Beer Run Day
The Brewers Association lists National Independent Beer Run Day on July 3 annually. Its 2019 stewardship report identifies 2019 as the first campaign and explains that July 3 was chosen to…
Source-backedFixed AnnualIn-depth guide
National Independent Worker Day
National Day Archives records National Independent Worker Day on August 16 and attributes its creation to iPSE-U.S. in 2019; current brand recognition provides additional corroboration.
Source-backedFixed AnnualIn-depth guide
National Indiana Day
National Day Calendar lists its private National Indiana Day on November 16. Indiana law separately designates December 11 as Indiana Day for the statehood anniversary, while federal and In…
Source-backedFixed AnnualIn-depth guide
National Indigenous Peoples Day (formerly National Aboriginal Day)
Canadian Heritage uses National Indigenous Peoples Day for 21 June; archived federal material documents the earlier National Aboriginal Day name, so the public page title is retained as a l…
Source-backedFixed AnnualIn-depth guide
National Indigenous Peoples Thanksgiving Day
Philippine Proclamation No. 486, s. 2003 declares October 29, 2003 and every year thereafter as National Indigenous Peoples Thanksgiving Day; the National Commission on Indigenous Peoples i…
Source-backedRule Based AnnualIn-depth guide
National Infertility Survival Day
A New York Senate resolution identifies Beverly Barna as the creator and states that National Infertility Survival Day is observed each year on the Sunday prior to Mother’s Day.
Source-backedFixed AnnualIn-depth guide
National Insurance Awareness Day
June 28 recurrence is strongly supported by repeated Michigan DIFS government usage and current observance listings, but reviewed sources do not establish the creator, first edition, foundi…
Source-backedFixed AnnualIn-depth guide
National Integration Day
Government of India Ministry of Home Affairs / Press Information Bureau
Source-backedRule Based AnnualIn-depth guide
National Intern Day
National Intern Day’s official FAQ says the campaign is held on the last Thursday in July, and current WayUp material identifies 30 July 2026.
Source-backedRule Based AnnualIn-depth guide
National Interpreter Appreciation Day
Minnesota Judicial Branch explicitly references National Interpreter Appreciation Day on Wednesday, May 6, 2026; Illinois court and public-school calendars place the observance on Wednesday…
Source-backedFixed AnnualIn-depth guide
National Inventors’ Day
Primary federal records show that Public Law 95-463 designated February 11, 1979 as National Inventors’ Day and authorized a Carter proclamation; later federal instruments again designated…
Source-backedFixed AnnualIn-depth guide
National Iowa Day
National Day Calendar lists its private National Iowa Day on February 8. Federal history separately records December 28, 1846 statehood, while State Historical Society of Iowa sources docum…
Source-backedRule Based AnnualIn-depth guide
National IPA Day
National Day Calendar documents National IPA Day on the first Thursday in August and attributes the modern observance to Ashley Routson in 2011.
Source-backedRule Based AnnualIn-depth guide
National Italian Beef Day
Buona Companies states that it founded/established National Italian Beef Day in 2015 after petitioning to designate the Saturday during U.S. Memorial Day weekend; its 2025 and 2026 first-pa…
Source-backedRule Based AnnualIn-depth guide
National Jamaican Patty Day
Golden Krust says it launched National Jamaican Patty Day in 2015 and celebrates it annually on the first Saturday in August.
Source-backedEdition SpecificIn-depth guide
National Jeep® 4x4 Day
Jeep’s first-party site identifies National Jeep® 4x4 Day on April 4, 2026.
Source-backedFixed AnnualIn-depth guide
National K-9 Veterans Day
Institutional sources recognize National K-9 Veterans Day on March 13 and tie the date to the U.S. Army War Dog Program launched March 13, 1942. Reviewed authoritative sources do not establ…
Source-backedFixed AnnualIn-depth guide
National Kentucky Day
National Day Calendar lists its private National Kentucky Day on October 19. Federal history separately records June 1, 1792 statehood, while Kentucky’s Native American Heritage Commission…
Source-backedFixed AnnualIn-depth guide
National Kids & Pets Day
Founder Colleen Paige states that she created National Kids & Pets Day in 2005 and her current holiday listing places it on April 26. The exact first completed edition and reason for select…
Source-backedRule Based AnnualIn-depth guide
National KidsDay
California ACR 86 describes National KidsDay as a special day set aside each year on the first Sunday in August and identifies a National KidsDay Alliance including Boys & Girls Clubs of Am…
Source-backedFixed AnnualIn-depth guide
National Kitten Day
Colleen Paige’s current official site lists National Kitten Day on July 10. A contemporaneous December 4, 2014 launch release identifies Paige as founder, describes National Kitten Day as a…
Source-backedEdition SpecificIn-depth guide
National Korean War Veterans Armistice Day
GovInfo’s 2026 federal feature recognizes July 27 as Korean War Armistice Day and pays tribute to Korean War veterans; 36 U.S.C. §127 preserves the earlier statutory National Korean War Vet…
Source-backedVariable CustomIn-depth guide
National Ladies Learning Code Day
Canada Learning Code documents National Ladies Learning Code Day from its first national event on September 21, 2013 through later editions including September 26, 2020 and November 6, 2021…
Source-backedFixed AnnualIn-depth guide
National Lard Day
Healthy Fats Coalition calls National Lard Day its brainchild and repeatedly marks December 8; its own press index links a December 8, 2018 supporter article describing the first annual obs…
Source-backedFixed AnnualIn-depth guide
National Latino AIDS Awareness Day (NLAAD)
Federal HIV/CDC sources identify October 15 as the annual National Latino AIDS Awareness Day and document the first observance in 2003. CDC states that the Latino Commission on AIDS and His…
Source-backedFixed AnnualIn-depth guide
National Law Enforcement Appreciation Day (L.E.A.D.)
Concerns of Police Survivors (C.O.P.S.) currently runs National Law Enforcement Appreciation Day on January 9; a District of Columbia announcement documents the January 9, 2015 launch with…
Source-backedFixed AnnualIn-depth guide
National Law Enforcement Suicide Awareness Day
FBI outreach material identifies September 26 as National Law Enforcement Suicide Awareness Day; Blue H.E.L.P. states the day was created to remember officers lost to suicide and reduce sti…
Source-backedRule Based AnnualIn-depth guide
National Learn to Swim Day™
Creator-issued Swimways releases state that Swimways founded National Learn to Swim Day™ in 2012 on the third Saturday of May each year; a 2019 Swimways release documents expansion of the p…
Source-backedFixed AnnualIn-depth guide
National Leathercraft Day
Tandy Leather states that it started National Leathercraft Day in 2018 and celebrates it on August 15; National Day Calendar records the Registrar’s annual August 15 proclamation.
Source-backedFixed AnnualIn-depth guide
National Lemon Bar Day
National Day Archives lists National Lemon Bar Day on October 15 and attributes its creation to Michael McCarthy in 2019.
Source-backedFixed AnnualIn-depth guide
National Letter Writing Day
The Smithsonian National Museum of American History identifies December 7 as National Letter Writing Day, and the University of Michigan Clements Library documented the same date in 2009 wh…
Source-backedFixed AnnualIn-depth guide
National Liberation Day of Korea (Gwangbokjeol)
Korea.net identifies 15 August as National Liberation Day (Gwangbokjeol) and describes it as an annual national commemoration.
Source-backedFixed AnnualIn-depth guide
National Life Insurance Day
National Day Calendar identifies Liran Hirschkorn as the 2014 submitter and May 2 as the recurring private observance date; exact first public edition remains unresolved.
Source-backedFixed AnnualIn-depth guide
National Little Black Dress Day
The Black Heart Association currently describes National Little Black Dress Day as its signature awareness initiative, says it is observed annually on September 1, and states that the assoc…
Source-backedFixed AnnualIn-depth guide
National Live Fearless Day
Landry Champlin’s current first-party biography says she started National Live Fearless Day; National Day Archives identifies Champlin as the creator in 2020 and September 2 as the annual d…
Source-backedEdition SpecificIn-depth guide
National Lobster Day
GovInfo records S. Res. 905, submitted and agreed to by the U.S. Senate on September 24, 2026, designating September 25, 2026 as National Lobster Day. Earlier Senate resolutions also design…
Source-backedFixed AnnualIn-depth guide
National Logistics Day
Logistics Plus first-party releases establish creation in 2019, the first June 28, 2019 edition and continuing June 28 recurrence.
Source-backedFixed AnnualIn-depth guide
National Look Alike Day
National Day Calendar preserves creator Jack Etzel’s first-person account of originating the observance in Pittsburgh in the 1980s and contacting Chase’s Calendar, while Pittsburgh Magazine…
Source-backedFixed AnnualIn-depth guide
National Louisiana Day
National Day Calendar lists its private National Louisiana Day on November 9. Louisiana law separately designates April 30 as Louisiana Day (not a legal holiday), matching the 1812 statehoo…
Source-backedFixed AnnualIn-depth guide
National Love Is Kind Day
National Day Calendar identifies Rosie Aiello and the Love Is Kind Network as the founders and proclaims National Love Is Kind Day to be observed annually on July 27.
Source-backedRule Based AnnualIn-depth guide
National Love Our Children Day
A creator-issued 2007 Love Our Children USA release calls National Love Our Children Day an initiative of Love Our Children USA, describes that year as the fourth annual edition, and states…
Source-backedFixed AnnualIn-depth guide
National Love People Day
Lifeline Church’s lead-pastor biography states that he and church leaders founded National Love People Day in 2017 and that it is celebrated annually on September 30.
Source-backedFixed AnnualIn-depth guide
National Love Your Pet Day
New York Senate resolutions in multiple years identify February 20 as Love Your Pet Day in conjunction with the observation of National Love Your Pet Day.
Source-backedFixed AnnualIn-depth guide
National Love Your Red Hair Day
How to be a Redhead states that its co-founders created Love Your Red Hair Day and celebrates it on November 5.
Source-backedFixed AnnualIn-depth guide
National Maine Day
National Day Calendar lists its private National Maine Day on December 21 and describes the National State Days series as beginning in 2017. Maine separately designates March 15 as Statehoo…
Source-backedFixed AnnualIn-depth guide
National Make Lunch Count Day
National Day Calendar and launch-era material attribute the 2016 observance to TGI Fridays and place it on April 13.
Source-backedFixed AnnualIn-depth guide
National Make Your Bed Day
National Day Calendar consistently places National Make Your Bed Day on September 11 and explicitly notes that its origin is unidentified.
Source-backedFixed AnnualIn-depth guide
National Making the First Move Day
Creator-authored material identifies Greshun De Bouse as founder of National Making the First Move Day; contemporaneous 2019 reporting documents her work to establish the April 7 observance…
Source-backedFixed AnnualIn-depth guide
National Maritime Day
United States Code, title 36 §128
Source-backedFixed AnnualIn-depth guide
National Mascot Day
Major League Baseball documents National Mascot Day on June 17 in connection with Mascot Hall of Fame recognition; original creator and first edition remain unresolved.
Source-backedFixed AnnualIn-depth guide
National Massachusetts Day
National Day Calendar lists National Massachusetts Day on 17 August. The U.S. Senate records Massachusetts’s admission/statehood date as 6 February 1788. The two dates are deliberately kept…